Apparatus for Writing Information on a Data Content on a Storage Medium

1. An apparatus for writing checksum information on a data content on a storage medium, comprising: a provider for providing checksum information based on a data content; and a writer for writing the data content, the checksum information and control information on a physical or logical location of the checksum information on the storage medium, such that a baseline reader and an enhanced reader can read the data content, the enhanced reader can read and process the control information and the checksum information and the baseline reader ignores, skips or does not read the checksum information.

2. The apparatus of claim 1 , further comprising an encryptor for encrypting the checksum information to obtain an integrity information, the encryption being based on an encryption key and wherein the writer is adapted for writing the integrity information and control information on a physical or logical location of the integrity information to the storage medium.

3. The apparatus of claim 1 , wherein the writer is adapted for writing on an optical disc, the optical disc having a user data area being adapted for storing the data content, wherein the writer is adapted for writing the control information on the physical or logical location of the checksum information or integrity information into the user data area.

4. The apparatus of claim 1 , wherein the data content comprises data files, wherein the provider for providing the checksum information is adapted for providing checksum information for all data files stored on the storage medium and wherein the writer is adapted for writing the checksum information or the integrity information to the logical end of the storage medium.

5. The apparatus of claim 1 , wherein the writer is adapted for writing a feature descriptor on the storage medium, the feature descriptor indicating that checksum information was written to the storage medium.

6. The apparatus of claim 1 , wherein the writer is adapted for writing a control information comprising a chunk table specifying an association between data content and checksum information or integrity information on the storage medium.

7. The apparatus of claim 1 , wherein the writer is adapted for writing a 128-bit checksum for a data segment to the storage medium.

8. The apparatus of claim 1 , which is implemented in an optical disc drive.

9. A method for writing checksum information on a data content on a storage medium, comprising: providing checksum information based on a data content; and writing the data content, the checksum information and control information on a physical or logical location of the checksum information on the storage medium such that a baseline reader and an enhanced reader can read the data content, the enhanced reader can read and process the control information and the checksum information, and the baseline reader ignores, skips or does not read the checksum information.

10. A non-transitory computer readable storage medium storing a computer program comprising a program code for performing, when the computer program runs on a computer, a method for writing checksum information on a data content on a storage medium, the method comprising: providing checksum information based on a data content; and writing the data content, the checksum information and control information on a physical or logical location of the checksum information on the storage medium such that a baseline reader and an enhanced reader can read the data content, the enhanced reader can read and process the control information and the checksum information, and the baseline reader ignores, skips or does not read the checksum information.